Behind the door, there was a circular staircase that led to the depths of the earth, like a staircase to hell, always giving people a creepy feeling, and each step was extremely short, just enough for one person to pass through.

But fortunately, there are some street lights on the wall, otherwise it is not easy to walk safely from here.

The two of them held on to the wall and walked down step by step, but after walking for half an hour, they still couldn't see the bottom, and when they looked up, the door was getting farther and farther away from them.

Zhang Ling was bold and followed behind Ling Tian, due to excessive nervousness, Zhang Ling at this moment was like a little girl, tightly tugging at the corners of Ling Tian's clothes, and the self-confident temperament unique to soldiers in usual times had long since disappeared completely.

In this way, Zhang Ling followed Ling Tian all the way, and he had already forgotten the time, so he kept going down, as if he would never reach the end.

Zhang Ling didn't say anything along the way, and suddenly, Ling Tian stopped, Zhang Ling didn't notice, and hit Ling Tian's body headlong, and then scolded, "Oops! What are you doing, hit me to death. ”

Ling Tian looked ahead and said softly, "It's here." ”

"Huh?"

Zhang Ling walked out behind Ling Tian, there was still a door in front of them, but this door was not open by anyone, if the operation was not right, the entire cave here would probably be blown out of powder.

The door in front of Ling Tian and Zhang Ling looked more advanced than the one just now, with a password button on the door, a small black display, and the entire door was completely made of the material of the bank vault, and even looked a little harder than that material.

Ling Tian turned his head to Zhang Ling next to him and said, "It's up to you now." ”

Zhang Ling didn't speak, walked to the door, and just as she was about to press the password, she turned her head to look at Ling Tian, signaling him to turn his head, don't want to see the password.

Ling Tian also tacitly understood Zhang Ling's meaning from her eyes, and turned his head very obediently, even the green python on Ling Tian's shoulder also turned around.

"Didi...... The password is correct, the pupil is authenticated, and the drop ......"

Then I heard a "clang" sound in the door, and the door opened automatically, and the moment the door opened, some unknown white gas emitted from the door.

After seeing the door open, Zhang Ling turned her head and said to Ling Tian, "The door is open, let's go." ”

Ling Tian, who turned around again, did not walk directly towards the door, but looked at Zhang Ling with a little meaning, but Ling Tian didn't say anything, took a look and walked in.

There are not many people in this world who know about the city fortress, and the people who can open the city fortress are basically the heads of various military regions, and she is a team leader, but she can open this door, which can't help but make Ling Tian curious in his heart.

Inside the door was a small room of about seventy or eighty square meters, but there were still two doors inside, leading to other places, and Ling Tian didn't check what it was.

Ling Tian and Zhang Ling walked directly to the operation board of the general control room, this general control room is decorated in army green, on the wall directly opposite the door, there is a wall of display screens, under the display screen is the operation board, and all kinds of strange buttons are installed on the operation board, but Ling Tian knows the button to activate the city fortress.

Ling Tian glanced at Zhang Ling and said, "You can open it, you still need to verify it." ”

"Hmm"

Zhang Ling walked to the red button, and gently put her finger on the place of fingerprint verification, and suddenly, the protective device that locked the red switch was opened, and all the display screens in front of her also lit up, showing the monitoring of all parts of Zhangzhou City, but some of the monitoring also appeared on the screen, which was obviously destroyed, but the main ones are still there.

Ling Tian stepped forward at this time and pressed the red button.

A voice that looked like a robot said: "Dear Major General Zhang Ling, hello, you are about to open the city fortress, I wish you peace." ”

"Major General? Are you a major general? Ling Tian asked in surprise

Zhang Ling looked at Ling Tian with a calm face and said, "Yes, what's wrong?" ”

"It's okay......"

At this moment, all the people in Zhangzhou City stopped what they were doing and looked at the ground.

Some small stones on the ground were beating violently, everyone thought it was an earthquake, all the people in the room ran out, and the outside was far away from the building, and some people were lying on the ground, feeling something carefully, and the shaking lasted for more than ten minutes before stopping.

I don't know who shouted: "Look, what's that?" ”

All the eyes of the people looked in the direction of the city, around the edge of the city, there began to be a bright glowing iron wall dozens of meters high from the ground, when the ground was not shaking, the wall also stopped, and the entire Zhangzhou City seemed to be enclosed in an iron cage.

Everyone walked under the wall one after another to look at the thing that suddenly appeared, and everything that was happening in Zhangzhou City now, Ling Tian and Zhang Ling could see it clearly in this general control room.

When everything was done, Ling Tian and the others were ready to leave, but before leaving, Ling Tian found a map on a table, which recorded the entire layout plan of Zhangzhou City and the construction of the city's fortress.

Ling Tian also found a secret passage on this map, a secret passage leading from the general control room to Zhangzhou City. That passage was behind the door on the left side of the main control room, which couldn't help but make Ling Tian a little curious about what was behind the door on the right, but it wasn't said on this picture.

Ling Tian walked to the door on the right, but the door was locked, Ling Tian pulled the door lock, opened the door, the door was dark, Zhang Ling walked over with the mobile phone at this time, the faint light of the mobile phone only shone less than a meter in front, but Ling Tian saw what it was, hurriedly retreated, locked the door, and added another iron chain.

And Zhang Ling was directly slipped out by Ling Tianti, Zhang Ling looked at Ling Tian blankly and asked, "What happened?" ”

"It's full of explosives, a room full of high explosives, and you want to go in again?" Ling Tian said

Zhang Ling shook her head again and again and said, "No, no, no." ”

Zhang Ling didn't know why so many explosives were placed here, and he didn't lock the door, even if he changed the door to a better quality, it wouldn't let Ling Tian enter so easily.

Ling Tian then took Zhang Ling back to Zhangzhou City through the passage of another door.

When he returned to Zhangzhou City, it was still a voice, Ling Tian didn't go to rest, and directly called all the high-level officials of the entire Battle Pavilion over and gathered in the large conference room.

Everyone who came yawned, and it was obvious that they had been forcibly pulled up in their sleep, and it was no wonder that they had just been woken up by the sudden vibration, and now they were pulled down again.

When everyone arrived, he said, "I think everyone knows what just happened." This is a city fortress, every city has it, it was Zhang Ling who helped me open it, and then Zhang Ling also managed this city fortress, and then I want to go to Shangzhou, and it all depends on you here. ”

"After I leave, the War Department will take on the responsibility of protecting the entire War Pavilion, you have to help me protect this city, and of course don't slack off in cultivation." Ling Tian looked at Gao Tian and said

"Next is the Ministry of Weapons and Medicine, Tie Niu, you have to study the book I gave you, I hope that the next time we meet, you will be able to create a ground-level weapon, I believe you." And Grandpa Lu, teach a few more apprentices and help you, you are working too hard. ”

"This time I will take Xiao Yu and a few people away, you have to guard here!"

After speaking, the others chatted for a while, and then went back, only Zhang Ling was depressed, originally wanted to go back to his room, but unconsciously walked to the door of Ling Tian's room.

Zhang Ling stood at Ling Tian's door for a while, then walked away, Ling Tian sat cross-legged in the room, as if he was cultivating, in fact, he had already sensed Zhang Ling's existence, and after Zhang Ling Zhang Ling left, Ling Tian sighed and said, "Alas, why bother. ”

Zhang Ling, who returned to her room, walked straight to the side of her bed and lay down, at this time Zhang Ling had a very strange feeling in her heart, when Ling Tian said that she was leaving, a strong sense of loss arose spontaneously from the bottom of her heart, and Zhang Ling didn't know why.

Zhang Ling, who was lying on the bed, tossed and turned, as soon as she closed her eyes, she thought of all the things that had happened with Ling Tian during this period of time, she didn't know what was wrong with her, she felt that she was sick, and touched her somewhat hot forehead and red hot face, which strengthened this idea.

Zhang Ling put her head under the quilt again, hoping to sweat, and the disease was estimated to be cured, but after tossing all night, she still couldn't fall asleep......